Can-heading machine.



YPATENTED NOV; 27, 1906.

' J. B'RENZINGBR.

CAN HEA'DING MACHINE.

'API LIGATIOR FILED AUG. 4, 1905.

' 'rnn STATES PATENT. OFFICE.

JULIUS BRENZINGER, OF MOUNT VERNON, NEW YORK, ASSIGNOR TO SANlTAl Y CANMACHINERY COMPANY, OF ELLSWORTH, MAINE, A

CORPQRATION ()F MAINE.

OAN-HEADING MACHINE.

No. sea-73s.

Specification of Letters Patent.

Patented ivov. 27, 1906.

"application filed August 4, 1905. Serial No. 272,657..

To all whom it may concern.-

Be it known that 1, Jones BRENZINGEE, a

citizen of the -United States, residing at videdwith a air ofnon-circular rollers which are soshape as to form a complement to thecan-body. In this way all means for effecting a lateral movement of theroller: while in operative engagement with the can-body are dispensedwith, whereby the construction of the machine is simplified and itsoutput is increased.

In the'accompanying drawings, Figurel is a side elevation of my improvedcan-heading machine; Fig. 2, a front elevation of the upper art thereof;Fig. 3, a horizontal section on e 3' 3, Fig. 2; 4, a plan, partly brokenaway, of the seaming-rollers and cover V Fig. 5, a detail of the firstseaming-roller;

' Fig. 6, a detail of the second seaming-roller,

and Fig. 7 a. detail of the suspending means of one of theseamingrollers.

' The letter it indicates the frame of the machine, provided withbearings a to receive the shaft b of a rotatable platform I). Thisplatform is adapted to supportthe can-body to be headed, such can-bodybeing of oblong anlar or other non-circular shape. The shaft togetherwith platform I), may be raised by means of a lever influenced by aspring 0', and connected by a link 0 with a collar 6 loosely embracingshaft b". Between collar 5 and a collar 5 fast on shaft 5, areinterposed cushions 6*, so that by depressing lever a shaft b is raisedthrough the intervention of link 0 collar 6 cushions 5 and collar 6Vertically above shaft 12 there depends from frame a a rotatable chuck(1, adapted to engage the recessed cover B, which is to be joined tocanbody A. The spindle d of chuck (1 turns in a bearing a and receivesrotary ,motion from ower-shaft a by pulleyai", belt a, and puley d It.Willb'e seen-that when'the canbody A, with 'cover B su erposed, isplaced upon platform I) and the atter is raised until sections 6 cover Bis engaged by chuck d the parts A and B will be rotated in unison.

During the rotation of parts A and B their adjoining flanges are upsetby a pair of 'seaming-rollers e and f, of which roller eis profiled toform a double seam, Fig. 5, while roller f is profiled to flatten suchseam, Fig. 6-that is to say, each of the rollers has an upper fla e, alower flange, and an intervening groovef iihe groove in roller f beingsomewhat shallower and higher than that of roller e.

4, Each of the rollers e and f makes the same number of rotations as thecan A, and its periphery is equal in length to that of the seam to beupset thereby. For this purpose the circumferential length or surfacespeed of the working edge of chuck (1 corresponds" substan tially to thecircumferential length of the grooved non-circular working edge of eachof the rollers 12 and f. As the description of roller 3 applies equallyto roll'erf, the former only will now be considered.

Briefly stated, the contour of roller 6 constitutes a complement to thatof the chuck d and of the can, so that as the parts e and A are jointlyrotated the sumof the successively-alined radii of such parts is alwaysequal. Thus the sum of the radii a: m is equal to the sum of the radii y'yor of any other two radii which will contact with each otherv duringthe rotation of the parts. For an oblong can-head, as shown in Fig. 4,the roller 6 must therefore be of oblong shape, having twodiametricallyarranged larger convex cam-sections e and two intermediatediametrically-arranged smaller convex cam- Between each pair of sectionse 6 there is formed the reentrant angle or concave cam-section e Withthis construction the peri'pheral length of each cam-section ecorresponds substantially to. the

length of each lon coverside B, cam-s'ection 6 correspon ssubstantially, to short cover side B while cam-section e correshape thecontour of roller e must be correspondingly changed, the gist of theconstruction being that the l grooved non-circular Working edge of therollers form a comple- 'ment to a non-circular can of substantially thesame circumferential length.

The roller has the convex cam-sections f" f and the concave sections fcorresponding to the parts e e 6 respectively, of roller The machine isso timed. that the rollers e 5 f are brought into successive-operativecontact with the can. I To elfect this resu.lt,'the construction is asfollows Tlre shafts g h of rollers e f, respectively, are journaled inupper bearings g h and 1o lower bearings g 72?.

The upper bearings g h are freely suspended between screws '9 7?,respectively. The lower bearings are slidable in. curved slotted guidesa projecting laterally from n 5 bearing 0 The bearings it are connectedby a sl'ide i, having a pin '11, which is grasped by the notched end" ofa bent lever j', fulcrumed to frame a at y'". Thus by manipulating leverj either ofthe bearings g h" may be moved inward to correspondingly tiltits shaft g or h, and thereby move its roller 6 or f laterally intooperativev contact with the can A, While the other roller is moved. awayfrom such can.

Simultaneous rotary movement is imparted to the rollers ef bygear-wheels g 72/ fast on shafts g .h, respectively and meshing into agear-wheel (1 fast on shaft d" of chuck d. The gear-wheels g 717 are of:the same 0 diameter as wheel 6?, so that the rollers e and f rotate withthe same speed as chuck d, the teeth of wheels g h being so shaped? asto permit the slight oscillation of' shafts g it on screws g h 5 It willbe seen that by the construction described the working seaming-rollerwhile in operative engagement with the can will turn on a stationaryaxial line, or, in other WOIdS,- the operative contact between can 40and roller will be maintained without swing ing the latter alternatelyinward and out a cerrespond ing w ward permit the rotation of thennronnd can-hody.

What I claim is--- v In. a can-head .1g machinenon-eircular 5.5seaming-roller having an alternately in: wardly and outwardly extendinggrooved Working edge, comhi ed with chuck having ng edge of same Slitface soeed wher ,y the sum of their succes-- siveiy-ali1ied remainsconstant,- sub-' stantially as specified.

2.111 can-heading machine, a non circnl r seaming-roller having alernately Werdly and outwardly oil-din working combined- J41 a acomplementary working edge 0}. substantially the same circumfereltiallength *h at of the seaming-roller, and means for maintaining theSQkllffllllllflfilifi? on stationary 6o axial line While in operativeengagement with the can, substantially as specified.

3. in a can-heading machine, a non-circular seaming-roller having anaternately I inv wardly and. ,outwardly extending grooved working edge,combined with a chuck hz-zving a complementary working edge of substamtially the same circumferential length as that of the seaming-roller,means for maintaining the seaming-roller on stationary axial line whilein operative engagement withthe can,

and means for rotating the seaming-roller an d check at the samespeed,substantially as specified.

Signed by me at New York city, {Man rattan, New i orlc, this 3d day ofAugust. 1905.

JULIUS BRENZEQNG ERP Witnesses FRANK v. ERIESENF Fania) Unrmcn'r.

